CVE-2026-27868Network attack vector

Unauthenticated information disclosure via Version query

Published Jun 17, 2026 · Updated Jun 17, 2026

Information disclosure in Teldat Regesta Smart HD-PLC 11.02.05.10.02 allows remote attackers to read privilege information. The /upgrade/query.php endpoint returns privileged device information when its unauthenticated cmd parameter requests the Version command. Network reachability is sufficient; no registration or user interaction is required, and the reported consequence is limited to confidentiality.

CVSS severity6.9
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Teldat Regesta Smart HD-PLC 11.02.05.10.02 allows remote attackers to read privilege information. The /upgrade/query.php endpoint returns privileged device information when its unauthenticated cmd parameter requests the Version command. Network reachability is sufficient; no registration or user interaction is required, and the reported consequence is limited to confidentiality.

The record

CVE
CVE-2026-27868
Published
Jun 17, 2026
Updated
Jun 17, 2026
Vendor
Teldat
Product
Regesta Smart HD-PLC - TLDPH16D2
Classifications
CWE-201, CAPEC-54, CAPEC-116, T1595
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.02.05.10.02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Teldat · Regesta Smart HD-PLC - TLDPH16D2version=11.02.05.10.02

Published CVSS scores

6.9HackRTUCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
CAPEC-54Query System for Information
CAPEC-116Excavation
T1595Active Scanning

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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